Lens generator



FIG. 1 is a front elevational view of a lens generator showing our new design;

FIG. 2 is a top plan view;

FIG. 3 is a right side elevational view;

FIG. 4 is a left side elevational view;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a bottom plan view thereof.

FIG. 6 has been drawn on a reduced scale with respect to FIGS. 1-5. 

The ornamental design for a lens generator, as shown and described. 